The new Boeing 787-9 doing some amazing flying prior to airshow!

Boeing has a new gigantic Dreamliner ready to fly you to a hot destination, Engadget reports, and the company decided to demo the longer 787-9 variant at the Farnborough Airshow in London. To highlight the new aircraft’s powers, 787-9 pilots performed various extreme maneuvers, like steep takeoffs and high-bank turns off the ground – or the kind of airplane action you’ll hopefully never have to experience yourself – with Boeing recording the whole experience on video.
The demo flight was performed with a very light load on board, with pilots showing off airplane capabilities that aren’t likely to be actually used during regular flights.

Seeing this video reminded me of an incident I saw when I was in Australia about ten years back.
When in Melbourne Australia once I saw a 747 come down so low over a park and then rise up again. pilot must've been high or something.